Fuzzy Value Function’s Curvilinear and Surface Integral Base on Fuzzy Structured Element Method (I) – Fuzzy-valued Function’s Curvilinear Integral

2010 ◽  
pp. 117-127
Author(s):  
Guo Sizong ◽  
Han jian ◽  
Chen Changhua
Keyword(s):  
Surface Integral ◽  
Curvilinear Integral ◽  
Fuzzy Structured Element ◽  
Element Method

scholarly journals A Domain Decomposition Method for Hybrid Shell Vector Element with Boundary Integral Method

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Lin Lei ◽  
Jun Hu ◽  
Hao-Quan Hu
Keyword(s):  
Domain Decomposition ◽  
Domain Decomposition Method ◽  
Three Dimensional ◽  
Shell Element ◽  
Boundary Integral ◽  
Boundary Integral Method ◽  
Thin Coating ◽  
Surface Integral ◽  
Vector Element ◽  
Element Method

For the conducting body coated with thin-layer material, plenty of fine meshes are required in general. In this paper, shell vector element (SVE) is used for modeling of thin coating dielectric. Further, a domain decomposition (DD) method for hybrid shell vector element method boundary integral (SVE-BI) is proposed for analysis of electromagnetic problem of multiple three-dimensional thin-coating objects. By this method, the whole computational domains are divided into sub-SVE domains and boundary element domains. With shell element, not only the unknowns are far less than the one by traditional vector element method, but only surface integral is required. The DDM framework used for hybrid SVE-BI also enhances the computational efficiency of solving scattering from multiple coating objects greatly. Finally, several numerical examples are presented to prove the accuracy and efficiency of this DDM-SVE-BI method.

scholarly journals A Study on the Use of Compound and Extracted Models in the High Frequency Electromagnetic Exposure Assessment

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
Mario Cvetković ◽  
Hrvoje Dodig ◽  
Dragan Poljak
Keyword(s):  
Electric Field ◽  
High Frequency ◽  
Compound Eye ◽  
Numerical Results ◽  
Similar Distribution ◽  
Surface Integral ◽  
Hybrid Finite Element Method ◽  
Human Eye ◽  
Organ Models ◽  
Element Method

The paper presents the numerical results for the induced electric field in the various models of the human eye and the head. The comparison between the extracted or the single organ models and the compound organ models placed inside realistic head models obtained from the magnetic resonance imaging scans is presented. The numerical results for several frequencies and polarizations of the incident electromagnetic (EM) plane wave are obtained using the hybrid finite element method/boundary element method (FEM/BEM) formulation and the surface integral equation (SIE) based formulation featuring the use of method of moments, respectively. Although some previous analysis showed the similar distribution of the induced electric field along the pupillary axis obtained in both eye models, this study showed this not to be the case in general. The analysis showed that the compound eye model is much more suitable when taking into account the polarization of the incident EM wave. The numerical results for the brain models showed much better agreement in the maximum values and distributions of the induced surface field between detailed models, while homogeneous brain model showed better agreement with the compound model in the distribution along selected sagittal axis points. The analysis could provide some helpful insights when carrying out the dosimetric analysis of the human eye and the head/brain exposed to high frequency EM radiation.

scholarly journals Solving the Fuzzy BiLevel Linear Programming with Multiple Followers through Structured Element Method

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Shengyue Deng ◽  
Liqian Zhou ◽  
Xinfan Wang
Keyword(s):  
Linear Programming ◽  
Optimal Solution ◽  
Bilevel Linear Programming ◽  
Numerical Example ◽  
Fuzzy Structured Element ◽  
Multiple Followers ◽  
Element Theory ◽  
Element Method

The optimal solution of fuzzy bilevel linear programming with multiple followers (MFFBLP) model is shown to be equivalent to the optimal solution of the bilevel linear programming with multiple followers by using fuzzy structured element theory. The optimal solution to this model is found out by adopting the Kuhn-Tucker approach. Finally, an illustrative numerical example for this model is also provided to demonstrate the feasibility and efficiency of the proposed method.

Simulation of tuning graphene plasmonic behaviors by ferroelectric domains for self-driven infrared photodetector applications

Nanoscale ◽  
2019 ◽  
Vol 11 (43) ◽  
pp. 20868-20875 ◽  
Author(s):  
Junxiong Guo ◽  
Yu Liu ◽  
Yuan Lin ◽  
Yu Tian ◽  
Jinxing Zhang ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Interfacial Effect ◽  
Infrared Photodetector ◽  
The Finite Element Method ◽  
Ferroelectric Domains ◽  
Element Method

We propose a graphene plasmonic infrared photodetector tuned by ferroelectric domains and investigate the interfacial effect using the finite element method.

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